6. Which of these correctly states coordinated function of leaves and roots during photosynthesis?

A. Roots allow entry of dissolved minerals while leaves allow entry of water
B. Roots allow entry of carbon dioxide while leaves allow the entry of water
C. Leaves allow entry of carbon dioxide while roots allow entry of water
D. Leaves allow entry of dissolved minerals while roots allow entry of water

7. if carbon dioxide is completely removed from a plant's environment, what would you expect to happen to the plant's production of high-energy sugar?

A. sugar production will likely increase
B. the rate of sugar production would decrease
C. sugar will not be produced ​